======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '181'
                                          'artist'  'Peanuts'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['transliteracy', 'electronica', 'japanese', 'folk', 'christmas']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '111.8'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TBPM' (BPM (beats per minute))                     '111.8'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Peanuts'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['transliteracy', 'electronica', 'japanese', 'folk', 'christmas']
'TXXX:other'                                        '-  -'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.99 dB'
'TXXX:replaygain_track_peak'                        '0.562465'

========================== row from database ==========================
                                              'id'  1404634
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Peanuts-FirstAlbum/-  -.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  181
                                           'genre'  loc-asia-japan
                                        'filesize'  4360756
                                           'mtime'  1622821617
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat FirstAlbum loc asia japan
                                      'tag_artist'  Peanuts
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  111.8
                                    'search_title'  None
                                   'search_artist'  'peanuts':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'album':10 'asia':7 'dance':3 'first':9 'firstalbum':5 'generic':2 'japan':8 'loc':6 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':2 'album':11 'asia':8 'dance':4 'first':10 'firstalbum':6 'generic':3 'japan':9 'loc':7 'peanuts':1B 'trapbeat':5
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-piano-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['transliteracy', 'electronica', 'japanese', 'folk', 'christmas']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622821616.576415  (2021-06-04 17:46:56)
                             'size'  4360756